CHEMGLASS CG-1406-25 Glass Frit Buchner Filter Funnel 350ML 24/40

( Brand: Chemglass ), ( Manufacturer Part Number: CG-1406-25 ), ( Part Type: Filter ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory ), ( Country Of Origin: United States ), ( Unit Type: Unit ), ( Additional Information: Surplus Laboratory Consumable Supplies )

Review CHEMGLASS Glass 350ml 24/40 Frit Buchner Filter Funnel

The **Chemglass CG-1406-25 Glass 350 mL 24/40 Frit Buchner Filter Funnel** is a precision-engineered laboratory accessory designed for efficient and reliable filtration processes in chemical, biological, and pharmaceutical research. Crafted from high-quality borosilicate glass (Type I, conforming to ASTM E438), this funnel is built to withstand the rigors of rigorous experimentation, offering exceptional thermal and chemical resistance while maintaining optical clarity for easy monitoring of filtration progress. The **24/40 standard taper joint** ensures a secure, leak-proof connection to compatible glassware, including Erlenmeyer flasks, filter flasks, or other laboratory apparatus, facilitating seamless integration into filtration setups. With a **350 mL capacity**, this funnel is ideal for medium-scale filtrations, accommodating a wide range of applications from vacuum filtration of solids to the separation of liquids and suspended particles in analytical chemistry, biochemistry, or material science.

The **fritted disc** at the base of the funnel is a defining feature, featuring a **medium porosity (G3)** that balances flow rate and particle retention, allowing for efficient liquid drainage while effectively trapping fine solids. This design minimizes clogging and reduces backpressure, ensuring smoother and faster filtration compared to conventional funnel methods. The **fritted surface** is precision-ground and polished to a smooth finish, promoting even distribution of the sample across the filter medium, whether using a preplaced filter paper or a fritted glass filter itself. The **25 mm diameter** of the frit provides a generous filtration area, enhancing throughput without compromising clarity or precision.

Constructed with **durable, heat-resistant glass**, this funnel is compatible with a variety of solvents, acids, and bases, making it versatile for use in organic synthesis, inorganic chemistry, or microbiological applications. The **24/40 joint** adheres to international laboratory standards, ensuring compatibility with most standard glassware, while the **350 mL volume** offers a practical balance between capacity and workspace efficiency. Whether used in routine laboratory procedures or specialized research, this funnel delivers consistent performance, reducing the risk of contamination or sample loss. Its **transparency** also allows for real-time observation of the filtration process, enabling operators to monitor progress and adjust techniques as needed. Overall, the **Chemglass CG-1406-25** is an indispensable tool for laboratories requiring reliable, high-performance filtration with durability and precision.

**Pros and Cons of buying a Chemglass CG-1406-25 Glass 350ml 24/40 Frit Buchner Filter Funnel**

1. **Durability and Chemical Resistance** Made from borosilicate glass (likely Type 1 or 3), this funnel is resistant to most acids, bases, and organic solvents, making it suitable for a wide range of laboratory applications, including filtration, extraction, and crystallization.

2. **Precision Fit and Standardization** The 24/40 joint ensures a secure, leak-proof connection to standard laboratory glassware (e.g., round-bottom flasks, filter flasks). This compatibility reduces the need for adapters or improvised setups, improving efficiency.

3. **Efficient Filtration** The fritted disc (likely medium or coarse porosity, depending on the frit rating) allows for rapid and even filtration of solids from liquids, minimizing clogging and reducing filtration time compared to plain glass funnels.

4. **Reusability and Longevity** Glass is a reusable material, and with proper care (avoiding thermal shock, cleaning thoroughly after use), this funnel can last for years, making it a cost-effective investment for laboratories.

5. **Compatibility with Vacuum Systems** The design supports vacuum filtration, which is essential for speeding up processes like recrystallization, drying solids, or preparing samples for analysis.

6. **Transparency** The glass material allows visual monitoring of the filtration process, ensuring that the funnel is not clogged and that the filtration is proceeding as expected.

7. **Sterilization and Cleaning** Can be easily cleaned with solvents, detergents, or even sterilized with heat or autoclaving (if compatible with the glass type), making it ideal for sterile applications in microbiology or pharmaceutical work.

8. **Versatility** Suitable for both laboratory and small-scale industrial applications, including chemistry, biochemistry, and materials science.

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1. **Fragility** Glass is brittle and can shatter if dropped or subjected to thermal shock (e.g., rapid heating or cooling). This requires careful handling, especially in environments with rough handling practices.

2. **Weight** Compared to plastic or polymer alternatives, glass is heavier, which can be cumbersome for frequent use or in settings where portability is a concern.

3. **Cleaning Time** Thorough cleaning, especially of the fritted disc, can be time-consuming. Residues like oils, proteins, or salts may require soaking or mechanical scrubbing, adding to workflow time.

4. **Cost** While durable, high-quality borosilicate glass funnels are more expensive upfront than disposable plastic alternatives. However, the long-term cost per use is often lower due to reusability.

5. **Limited Temperature Range** Although borosilicate glass has a high thermal resistance, extreme temperatures (e.g., near melting points of certain reagents) can still pose risks, such as warping or cracking.

6. **Maintenance of Fritted Disc** Over time, the fritted disc may become clogged or damaged, requiring replacement. This adds to the long-term cost and maintenance effort.

7. **Not Ideal for High-Pressure Applications** While suitable for vacuum filtration, it is not designed for high-pressure systems, which could cause leaks or damage.

8. **Storage Space** Glassware requires careful storage to prevent breakage, which may not be feasible in space-constrained environments.

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The Chemglass CG-1406-25 350ml 24/40 frit Buchner filter funnel is a high-quality, versatile tool for laboratories requiring reliable filtration under vacuum. Its chemical resistance, precision fit, and durability make it indispensable for routine and advanced laboratory work. However, its fragility, weight, and maintenance requirements necessitate careful handling and storage. For most academic, industrial, or research laboratories, the benefits outweigh the drawbacks, making it a worthwhile investment. If budget or space constraints are significant, disposable plastic alternatives may be considered for less demanding applications, but they lack the durability and chemical resistance of glass.

- You require a durable, reusable filtration tool for routine or advanced laboratory work.

- Your workflow involves vacuum filtration of solids from liquids, crystallization, or sample preparation.

- You prioritize chemical resistance and compatibility with a wide range of solvents and reagents.

- You are willing to invest in long-term equipment that will last for years with proper care.

- Your laboratory has limited space or budget for fragile glassware.

- You frequently handle highly abrasive or corrosive materials that may damage the fritted disc quickly.

- You require disposable or lightweight filtration tools for fieldwork or temporary setups.

- Your applications involve extreme temperatures or pressures that could compromise the glass.

For most standard laboratory settings, this funnel is highly recommended for its reliability and performance. Always ensure proper cleaning and storage to maximize its lifespan.

Details:

Used item in great condition. Very small chip on bottom of drip tip, otherwise no chips or cracks throughout. See pictures for details.

part #: cg140625 prices

• $62.99-$132.83

specifications plasticwarelabsuppy:

• brand: Chemglass
• mpn: Cg-1406-25
• part type: Filter
• intended use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory
• country of origin: United States
• unit type: Unit
• additional information: Surplus Laboratory Consumable Supplies

seller plasticwarelabsuppy:

• # reviews: 7609
• rating: 99.9%
• city: Cotati, California

offer plasticwarelabsuppy:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: March 24, 2026

general plasticwarelabsuppy:

• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware
• condition: Used

returns plasticwarelabsuppy:

• paid by: Seller
• policy: Returns Accepted
• method: Money back
• time: 30 Days

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• wallet: Paypal
• credit card: Mastercard
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shipping plasticwarelabsuppy:

• class: Standard, Expedited, One-day
• cost: $0.00
• type: Fixed
• transit: 3-8 Days
• carrier: USPS, FedEx
• service: USPS First Class, FedEx 2Day, FedEx Standard Overnight

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